Dumbbell



FIG. 1 is a right front perspective of a dumbbell, showing my new design;

FIG. 2 is a side elevational view, the opposite side elevational view being substantially a mirror image, thereof;

FIG. 3 is an end elevational view thereof, the opposite end elevational view being identical thereto;

FIG. 4 is a side elevational view as is FIG. 2, with the weights being shown in alternative positions;

FIG. 5 is a right front perspective of an alternative embodiment of the dumbbell shown in FIGS. 1 through 4;

FIG. 6 is an end elevational view thereof, the opposite end elevational view being identical thereto;

FIG. 7 is a side elevational view, the opposite side elevational view being substantially a mirror image, thereof;

FIG. 8 is a top plan view, thereof;

FIG. 9 is a bottom plan view, thereof; and,

FIG. 10 is a side elevational view as in FIG. 7, with the weights being shown in alternative positions. 

The ornamental design for a dumbbell, as shown and described. 